Finding the Fourth Proportional to 1,497,378.40, 2,246,359.20 and 432,455.20
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Solution
The fourth proportional to 1,497,378.40, 2,246,359.20 and 432,455.20 is: 648,767.02
Step by Step Solution
- Step 1: Write the proportion equation
1,497,378.40 : 2,246,359.20 = 432,455.20 : x - Step 2: Convert to fraction form
1,497,378.40/2,246,359.20 = 432,455.20/x - Step 3: Cross multiply
1,497,378.40x = 2,246,359.20 × 432,455.20 - Step 4: Simplify right side
1,497,378.40x = 971,449,717,107.84 - Step 5: Solve for x
x = 971,449,717,107.84/1,497,378.40 - Step 6: Final answer
x = 648,767.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.